Time-varying multipath fading associated with the wireless link
limit the capacity of a wireless system. To adapt to this adverse
radio environment efficiently, we investigate the use of a
pilot-aided fade-resistant transmission scheme for the uplink of a
chip-interleaved code division multiple access (CDMA) system. We
analyze the trade-off between the number of diversity branches and
the channel estimation error. We derive the optimum ratio of pilot
signal power to information signal power. Our numerical study
indicates that depending on the transmitter power and channel
condition, the proposed system is capable of outperforming the
conventional CDMA system.